PATHOLOGY

PATHOLOGY MCQ

SKIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What does melanin protect?
A
The nucleus
B
Nucleic acid
C
Folate
D
All of the above
Explanation: 

Detailed explanation-1: -In its various forms, melanin fulfills a variety of biological functions, including skin and hair pigmentation and photoprotection of the skin and eye. Pigmentation of the skin results from the accumulation of melanin-containing melanosomes in the basal layer of the epidermis.

Detailed explanation-2: -Melanin helps block out damaging UV rays up to a point, which is why people with naturally darker skin are less likely to get sunburned, while people with lighter skin are more likely to burn. Sunburns can increase your risk of skin cancer, including melanoma.

Detailed explanation-3: -In most people, UV rays activate a chemical in the skin called melanin. This is the skin’s first defense against the sun. Melanin absorbs the dangerous UV rays that can do serious skin damage. This is the process that gives you a tan.

There is 1 question to complete.